It is refer to Google Feedburner service "My Brand". As per following instructions mentioned at my account section
Create a CNAME entry in the DNS records for each domain name.
If you want to host your feeds at the feeds subdomain (this is the most common choice, like feeds.domain.com), your CNAME entry should be:
feeds CNAME walkinghighgmail.feedproxy.ghs.google.com.
I have created CNAME entry as [walkinghighgmail.feedproxy.ghs.google.com] with my domain account with znetindia.com & entered feed domain name as [feed.keepyouahead.com]
But the same is not working kindly advise.
Awaiting your reply.
With Best Wishes,
Manoj Kumar
New Delhi